Step-by-step explanation:
A- Equilateral (all of the angles are the same)
B- isosceles (just two angles are the same)
C- scalene (non of the angles are the same)
 
        
                    
             
        
        
        

 
![\qquad \tt \rightarrow \:Domain = [-9, -1]](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3ADomain%20%3D%20%5B-9%2C%20-1%5D)
![\qquad \tt \rightarrow \:Range = [-1 , 3]](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3ARange%20%3D%20%5B-1%20%2C%203%5D)
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Domain = All possible values of x for which f(x) is defined 
[ generally the extension of function in x - direction ]
Range = All possible values of f(x) 
[ generally the extension of function in y - direction ]

![\qquad \tt \rightarrow \: domain = [ - 9, -1]](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%20domain%20%3D%20%5B%20-%209%2C%20-1%5D)
![\qquad \tt \rightarrow \: range= [ -1,3]](https://tex.z-dn.net/?f=%5Cqquad%20%5Ctt%20%5Crightarrow%20%5C%3A%20range%3D%20%5B%20-1%2C3%5D)
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
 
        
             
        
        
        
Answer:
I think its -2,-3,0,2,5, hope its right
 
        
             
        
        
        
I could be wrong but this is what I think.
D=RT
D=39 (3)
D=117